I'd like to replicate what Nabil did on his video portfolio through pagelines http://nabil.com/film The videos are large and can be scrolled through sideways through the arrow keys and scroll wheel. Any ideas?

I would say the easiest way would be to use a plugin that allows you to do it. Looking at the site in question they seem to have the video containers called in through a series of iframes. I can see a script for iscroll https://github.com/cubiq/iscroll in the code but I can't tell if it's using that on the vimeo videos. Might be worth dropping the people who made that site a line to see if they can confirm exactly what they did.